Loom for weaving tufted pile fabric



July 14, 1931. E. F. CLARK 1,814,294

LOOM FOR WEAVING TUFTED FILE FABRIC Filed Jan. 10, 1950 2 Sheets-Sheet 1 WW INVIENTOR July 14, 1931. F. CLARK LOOM FOR WEAVING TUFTED FILE FABRIC Filed Jan. 10, 19250 .2 Sheets-Sheet 2 fig Inmz

lNVENTOR Patented July 14, 1931 UNITED STATES.

PATENT oFFicE' p EUGENE F. CLARK,

CORPORATION, or PHILADELPHIA, SYLVANIA F DAMARISGOTTA, MAINE, ASSIGNORTO MARSHALL FIELD MILLS PENNSYLVANIA, A. CORPORATION 'OF PENN- LOOM FOB, WEAVING TUFTED PILE FABRIC,

App1ication filed January 10, 1930. Serial No. 419,765.

This invention relates to improvements in that class of looms for weaving tufted pile fabric wherein tuft yarn frames or carriers, commonly'called tube frames, are mounted in spaced parallel relation on a pair of end Tless carrying chains which are actuated to bring the frames successively into a yarn de livering position, and wherein a row of yarn grippers are supported and actuated to move from a position adjacent to the fell of the fabric being woven to a position adjacent to the yarn delivering position of the tuft yarn frames and back again to receive the tuft yarn from the frames and transfer it to the fabric, as illustrated and described in my previous Patent No. 1,594,605, dated August 3,

The object of my present invention is to improve the construction of the tuftyarn go frames as related to the yarn grippers whereby the grippers, during the operation thereof may enter yarn passages of the frames to receive the tuft yarns therefrom withoutdanger of having parts of the grippers engage parts of the frames and damage either the grippers or the frames even though some or all of the grippers might not be in perfect registry with the yarn passages when the grippers are moved into the same.

The invention consists ofthe elements and the combinations of them hereinafter described and claimed.

In the accompanying drawings illustrating the invention, 7 7

Figure 1 "s a vertical section through a portion of a loom for weaving tufted pile fabric, embodying my invention.

Figure 2 is a front view of one 'end-por-.

t-ion of the tuft yarn frame and a'portion of the row of yarn grippers which co-operate therewith.

Figure 3 is a front view of a portion of the tuft yarn frame, enlarged.

Figure 4 is a transverse-section throughthe tuft yarn frame, on line 4- 1 of Fig. 8.

Figure 5 is a transverse section through the lower portion of the tuft yarn frame,

on line 55 of Fig. 8.

Figure 6 is a rear view of a portion of a part of the tuft yarn frame.

The shaft 9 is carried by K Figure 7 is a longitudinal section through a portion of the tuft yarn frame, on line 7'7 of Fig. 4:. Figure Sis a bottom View of a portion of the tuft yarn frame.

Referring to the tuft yarn carrier and 3 a row of yarn grippers. j f

Each yarn gripper comprises twojaws 6 and 8. The jaws 8 are pivoted on the jaws 6 to move thereon from the open position shown by full lines in Fig. 1 to the closed position shown by dot-'and-dash lines therein. The jaws 6 are/fixed on ashaft 9 in lateral spaced relation, as shown in Fig. 2. 7 end arms 10 pro-' j ectingfixedly from a roc able shaft 11 which" is mounted to turn in bearing on the loom frame, not shown, whereby the grippers may be raised and lowered to the position shown by full lines and to the position shown by dot-and-dash lines in Fig. 1.

The jaw 8 of each yarn gripper 3 is provided with an arm 12 the free end of which extends between two plates projecting from a shaft 13 which is mounted to be rocked in the arms '10 whereby the yarn grippers may I be opened and closed.

The mechanism for supporting and actuat'- ing these yarn grippers is the same as that shown and described in my previous'Patent The tuft yarn frameQ. comprises a long body bar 14; having an arm 15 on each end thereof provided With means for connecting it to a carrying chain 16. The arm 15 is also.

provided with means forming a bearing for drawings 2 designates a w [iii the tuft yarn spool 17 carriedby the frame 2.

In practice a large number. of tuft yarn frames like-the frame 2 are employed and carried by two endless chains and successively brought into the yarn delivery position in which the frame 2 is shown in Fig. 1. The mechanism for thus supporting and bringing the tuft yarn frames into the yarn delivery position with relation to the yarn grippers 3 is well known by persons skilled'in this art.

The body bar 14L of the tuft yarn frame 2 has secured to the bottom thereof a strip of sheet metal 18 bent to form spaced parallel parts 19 and 20 which project downwardly gherefrom and extend longitudinally of the The forward part 19 has a row of openings 21 therein and the rearward part 20 has a row of openings 22 therein correspondingin number with the openings 21 and in alinement therewith transversely of the bar 14.

Extending betweenflreparcel?) and- 210' and v arrange d within the spamsear and 22 in is a row of laterally spaced plates 23. These plates 23 extend forivardry froir i tlie part 19 and forwardly of the bar 14 and the forwardly extending portions 'oftlie plates form yarn passages '24 between theintor the reception of the tuft yarnstran ds 25 deliyer'ed by "the spool 17 The inain bodies of the plates-23 tornthe side walls of the, yarn passages 2'4 and forward an'di 'e'ai'ward displace ment of the yarn strands 2'5Tis'pre'v'entedby forward rearw rd laterally extending projections26 and 27 respectively, between which the yarn strands pass. I j I A sensitiveflat spring is. provided which eXtendslongit udinal-ly of the bar 14 and has its upper edge portion'held in place by brac'le ejts 29 on the bar-14. The spring '28 is. shaped in cross, section as clearly shown in Fig. and its'slowe'r free edge portion extends into openings SO'in the plates'2'3' adjacent to the forward pr'o'jections 26 's'ofthat the yarn strands 25 will pass betweenthe projeetions 26 andthe spring 28 'an d the latter will exert suflici-ent pressure against the strands to retain them properly within the arnpassages 24. i I I I The rearward ends of; the :plates 23have projections 31 formed thereon which enter the openings 22in thepart 2 0' and which are I adapte'd'to engage the bottom,walls of the openings to prevent downward displacement of'the plates; and the plates-23 are retained within the openings 21 andg22by aremoyahl'e rod- 32 'hich' penetratesthe part 19' and theplates-23'. I V I I I I I I The openings '21 and 22 in the 19 and 20 are made wider than the thickness oft-he plates- 23' to permit nterar movement of theplates therein, and the at is fitted to'tli'c openings in the plates through'whitz'h it tends with sulh'cient l'oosene's's'to p'erlni t the plates 23 to rock onthe rod-both Vertically and horizontally. I I I I Extending between-thepart's 19 and" 20 and rod 7 32- fromthepart 19 boththe fplats-' 23 andthe springs 33 may-be removed f-rom the laterally in mistress sett ngs and 22 in substantially matte spaced relation with the I I I yarn passages 24 betwen theln opp'osite ro or-integral with the yarn grippers3, or substantially so, as shown in Fig. 2.

Itwill not hefindefstood that the springs 33 constitute ayielding means which maintains the plates in the I normal position shown the' drawings and that'the plates 23 and particularly the forward portions thereof forming the yarn p'assages -24L may yam spaces or and lowered sufiiciently to draw downlbelow tra-nds within the .pas-

I either direction longitudinallyf ofthebar withinthe limits allowed by the the plates 23 the required lengths of yarn strands for forming tufts, and thereafter the strands are out directly below the plates and the cut lengths 'are lowered by the; grippers to the position shown by "do't-and-d ash lines in Fig.;1" to be woven being produced by the loom, all in the usual manner welllmown in tuft weaving. V

The respectivesi'des of theupper ends of the gripperj-awso and 8 are beveled and-the bottom edges of theplates 23 are rounded so that if, for any reason, any or all of the grippers3 should be out of-reg-istry with the yarn passages 24, and the grippers should engageany or all of the plates-23 when-the 1 grippers are moved into the. yarn* passages; the plate or platesthus engaged by the grip er or grippers Wlll yllCl lIl a lateral direction and ermitthe ri'ppere to seat the yarn assages witheht damage eyer to either the grippers or the plates 'I claim as my iaventitn: I I I 1. A tu ft yarn frame-com risin a' b od'y bar provided with means for carrying a tart s oo1,iar'ow;of laterally s aced and laterally movable plates forming passages between them for yarn strands delivered from said spool,- means connecting said bar and said plates, and spring. means maintain-v as tufts into the fabric 2 ing said plates normally in predetermined laterally spaced openings therein, a row of laterally spaced plates within said openings and forming passages between them for yarn strands delivered from said spool, said openings being wider than said plates and permitting lateral movement of the plates there-. in, spring means acting upon the plates and maintaining them normally in predetermined positions and permitting them to yield laterally from such positions, and means to retain said plates within said openings.

3. A tuft yarn frame comprising a body bar provided with means for carrying a tuft yarn spool and having a part provided with laterally spaced openings therein, a row of laterally spaced plates within said openings and forming passages between them for yarn strands delivered from said spool, said openings being wider than said plates and permitting lateral movement of the plates therein, fiat springs adjacent to said plates yieldably maintaining them in predetermined positions, and a removable rod penetrating said part and said plates and said springs and holding them in operative relationship.

4. A tuft yarn frame comprising a bodfy bar provided with means for carrying a tu t yarn spool and having spaced parallel parts projecting therefrom and extending longitudinally thereof, each of said parts having a row of openings therein alined with the openings of the other part transversely of the bar, a row of laterally spaced and laterally movable plates forming passages between them for yarn strands delivered from said spool and extending between said parts and into the openings therein, means to retain said plates within said openings, and bow springs extending between said parts and into the openings therein adjacent to said plates and yieldably maintaining them in predetermined positions.

5. A tuft yarn frame comprising a body bar provided with means for carrying a tuft yarn spool and having spaced parallel parts 'rojecting therefrom and extending longitudinally thereof, each of said parts having a row of openings therein alined with the openings of the other part transversely of the bar, a row of laterally spaced and laterally movable plates forming passages between them for yarn strands delivered from said spool and extending between said parts and into the openings therein, bow springs extending between said parts and into the openings therein adjacent to said plates and yieldably maintaining them in predetermined positions, and a common means cooperating with one of said parts and holding said plates and said springs in operative relationship. 1

6. In a loom for weaving tufted pile fabric, a tuft yarn frame movable into and from a yarn delivering'position and comprising a body'bar provided with means for carrying a tuft yarn spool andcarrying'a row of laterally spaced and laterally movable plates forming passages between them for yarn strands delivered from said spool and being provided with spring means to maintain them normally in predetermined positions and to permit them to yield later-- ally from such positions, and means oper able to movesaid frame to and from a yarn delivering position; in combination with a row of yarn grippers supported in fixed lateral spaced relation and movable into and from the spaces between said plates when said frame is in'said yarn delivering position.

7. In a loom for weaving tufted" pile fabric, a tuft yarn frame movable into and from a yarn delivering position and comprising a body bar provided with means for carrying a tuft yarnspool and having a part provided with laterally spaced openings therein, a row of laterally spaced plates within said openings and forming passages between them for yarn strands delivered from said spool, said openings being wider than said plates to permit lateral movement of the plates therein, spring means acting upon the plates to maintain them normally in predetermined positions and to permit them to yield laterally from such positions and means to retain said plates within said openings; and means operable to move said frame to and from a yarn delivering position; in combination with a row of yarn grippers supported in fixed lateral spaced relation and movable into and from the spaces between said plates when said frame is in said yarn delivering position.

8. In a loom for weaving tufted pile fabric, a tuft yarn frame movable into and from a yarn delivering position and comprising a body bar provided with means for carrying a tuft yarn spool and having a part provided with laterally spaced openings therein,

a row of laterally spaced plates within said N 4;

openings and forming passages between them for yarn strands delivered from said spool, said openings being wider than said plates to permit lateral movement of the plates therein, bow springs adjacent to said plates yieldably maintaining them in predetermined positions and a removable rod penetrating said part and said plates and said springs and holding them in operative relationship; and means operable to move said frame to and from a yarn delivering position; in combination with a row of yarn grippers supported in fixed lateral spaced relation and movable into and from the spaces between "said-plates when said fn'anie is in' said yarn delivering position. e r 9. In a loom for' weaving tufted pile fa bric, a tui't yarn'f-ra-Ine movable into'iand from a yarn delivering position aind -comprising a bodyi-barpprovided withmeans for ca'nrying a "tuzftyarn rspoolwand' ha-ving-spaced paralie'lparts-pr jeoting"therefrom and extendi-ng longitudirially thereo-t, eachofsaid; 13 arts haivi-ng'a' row of openingstherein 'alined with the openings ofwthe' other fpa-rttmns've'rsely of the barfarow-of laterally spaced :zmddateraily movable -pi:t'tes forming passages between them for yarnstrands delivered "from said spool and extending 'be'tweensaid parts and into the openings =-therein and --bow springs extending'between' said parts and into the openings therein iadjacent to saidg-pla'tes and yieldably maintainingfthem 'i-n predetermined positions andmeans operziblegto move said frame to and-from yarn deliv'ering position; incom-bination with airo'wiof yarn grippers supportedin :fixed lateral spacedv relation "and -movab'1e into and twin-the spaces between said plates when'sa-i d frame is insaid yarn de1-ii ering5;position.

Intestimon-y whereof I-a=ffiXi my signature.

EUGENE F. 'GLARK. 

